Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
In Svínavatn, the lowest average temperatures are observed in December, with a high of -0.5°C (31.1°F) and a low of -4°C (24.8°F).Humidity
The average relative humidity in December is 84%.Rainfall
In December, the rain falls for 5.9 days. Throughout December, 35mm (1.38") of precipitation is accumulated. In Svínavatn, during the entire year, the rain falls for 116.6 days and collects up to 320mm (12.6") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Svínavatn, during December, snow falls for 9.7 days and regularly aggregates up to 84mm (3.31") of snow. Throughout the year, there are 68.6 snowfall days, and 513mm (20.2") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 3h and 30min of daylight.On the first day of December, sunrise is at 11:00 and sunset at 15:18. On the last day of the month, sunrise is at 11:37 and sunset at 15:09 GMT.
Sunshine
The average sunshine in December is 1.7h.UV index
March, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December in Svínavatn?
How many hours of sunshine does Svínavatn have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Svínavatn, Iceland
- Average high temperature in December: -0.5°C
The warmest month (with the highest average high temperature) is July (11.8°C).
The month with the lowest average high temperature is December (-0.5°C).
- Average low temperature in December: -4°C
The month with the highest average low temperature is July (7.4°C).
The coldest month (with the lowest average low temperature) is December (-4°C).
Average pressure in December
Svínavatn, Iceland
- Average pressure in December: 999.8mbar
The month with the highest atmospheric pressure is June (1014.4mbar).
The month with the lowest atmospheric pressure is January (998mbar).
Average wind speed in December
Svínavatn, Iceland
- Average wind speed in December: 21.9km/h
The windiest month (with the highest average wind speed) is December (21.9km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).
Average humidity in December
Svínavatn, Iceland
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are May and June (75%).
Average rainfall in December
Svínavatn, Iceland
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is September (43mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in December
Svínavatn, Iceland
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is September (14.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Svínavatn, Iceland
- Average snowfall in December: 84mm
The month with the highest snowfall is January (106mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Svínavatn, Iceland
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are July and August (0.1 days).
Average daylight in December /
Average sunshine in December
Svínavatn, Iceland
- Average daylight in December: 3h and 3min
The month with the longest days is June (Average daylight: 22h and 24min).
The month with the shortest days is December (Average daylight: 3h and 30min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is June (Average sunshine: 0h and 42min).
Average sunshine days in December
Svínavatn, Iceland
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is June (15.8 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in December
Svínavatn, Iceland
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 3).
The months with the lowest UV index are March, October, November and December (UV index 1).
Average cloud cover in December
Svínavatn, Iceland
- Average cloud cover in December: 64
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 55).
Average visibility in December
Svínavatn, Iceland
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
